Vulcanizer



R. G. DANEEL VULCANIZER May 2, 1933.

Filed July 29, 1929 75 INVENTOR. fioga/ G. Dan/e/ A TTORNEYJ Patented Rley 2, 1933 ieeasa Ii-QYAL DANIEL, OF DENVER, COLDR-ADO VULGANIZERApplication filed July 29, 19538.

This invention relates to vulcanizers, and more particularly totire-Vulcanizers of the type shown and described in my application forpatent, Serial No. 323,760, filed on the '5 4th day of December, A. D.1928.

In vulcanizers of. this character, a flash boiler generates the heatnecessary to vulcanize tire covers and tire tubes held upon the exteriorsurface of a table to which the boiler is applied and it is an object ofthe present invention to provide the table with an upstanding baclrandto extend the steam space of the boiler into the back whereby to subjecttwo sides of a tire held upon the table, simultaneously to thevulcanizing heat.

Another object of the invention resides in the provision of a mountingwhereby the tire-supporting table and flash boiler may 26 be readilyadjusted with relation to a pressure screw which holds the tire incontact with the heated surfaces of the vulcanizer.

A further object is to provide a vulcanizer of the improved constructionwith conveniently located clamps -for vulcanizing inner tubes, anotherobject resides in an improvement in the construction of these clampswhereby they are held automatically in adjusted positions and stillfurther objects reside in details of construction and novel arrangementsand combinations of parts as will be fully brought out in the course ofthe following description.

In the accompanying drawing in the several views of which like parts aresimilarly designated,

Figure 1 represents a partially sectional side elevation of a vulcanizermade in accordance with the present invention,

' Figure 2, a fragmentary section along the line 22, Figure 1,

Figure 3, section taken on the line 33, Figure 1,

Figure l, an end elevation of the vulcanizer looking in the direction ofthe arrow A in Figure 1,

Figure 5, a fragmentary end elevation of vulcanizer of modifiedconstruction, and

Figure 6, an elevation looking in the direction of the arrow B in Figure5.

inent and coextensive with the top of the Serial N0. 381,896.

In the construction shown in Figures 1 to l of the drawing, thevulcanizer comprises a stand or table 5 having at one side an uastandingback 6. The stand and the back are hollow to provide water and steamspaces 7 and 8.

The space 7 of the stand is partially cylindrical as at 9, and in spacedrelation to the wall of this cylindrical portion is a tubular housing 10for an electric heating clement.

The heating element comprises a core 12 made of porcelain or otherheat-resisting material, which is supported by heads 13 that close theends of the housing, and a resistance coil 14 that is wound around thecore, preferably in a circumferential helical groove thereof. Bindingposts 15 on one of the heads, connect the resistance coil in an electriccircuit.

It is a distinctive feature of the invention that the water and steamspaces 6X- teriorly of the housing of the heating eletable and the backor the same, are restricted in width so as to spread the fluids withinthe same in sheets that are readily affected by the heat generated inthe housing and readily transn'iit the heat to the surfaces of the tableand the back used in the vulcanizing or curing operation.

The entire construction, as hereinabove described, comprises a lashboiler adapted for the instantaneous generation oi heat during eachactual operation which avoids the necessity of heating the vulcanizerbeforehand and between operations, as is required in many vulcanizers atpresent in use.

The wall of the cylindrical portion of the water and steam space 01" theboiler is packed in a bed 16 of mineral wool or other insulatingmaterial that occupies the space of the hollow stand exteriorly of thewater and steam space, and the rear surface of the back of the table maybe protected from the cooling influence of the atmosphere by a coveringof asbestos shown at 17 It is to be understood that while the use ofsteam as a heating medium is preferred, any liquid or seniiuiquid takinghigh temperatures without vaporization, may be employed.

The stand or table is adj ustably supported upon a base 17 by means ofrunners 18 of dovetail section, slidably fitted in correspondinglyformed ways 19 of the base.

A standard 20 rising from the back of the base has an arm 20a projectinglaterally therefrom over the back and the top of the table, and this armhas at its end, a screwthreaded opening to receive the pressure screw a0by means of which a tire 21 to be vulcanized, is held in position.

The screw 40 has at its lower end, a tireengaging foot 22 connected withthe screw by a ball-and-soeket joint and it has at its upper end, ahand-wheel 23.

The table top may be extended for vulcanizing inner tubes. The extnsions projecting at opposite ends of the table have been shown at 24,and at a side of the extensions are upright standards 25 for the supportof the clamps by which the tire tubes are secured.

The clamps each consist of an arm 26 provided at one end with a sleeve27 slidable upon the respective standard, and having at its other end ascrew-threaded opening for the support of a screw 28 similar inconstruction to the pressure screw Q0.

The screw 28 has at one end, a foot 29 connected with the screw by auniversal joint to engage a tire tube placed upon the respectiveextension of the table and it has at its upper end, a handle 30 tofacilitate its manual rotation.

The standards 25 are serrated, corrugated or otherwise roughened toincrease the frictional contact of the sleeves 27 of the rela tivelysliding arms 26.

In the operation of the vulcanizer, a mold 31 adapted to hold a tirecover, is placed upon the table top against the back 6, as shown in thedrawings. The mold may be locked in place by latches 32 pivotallysecured at the ends of the back and cooperating with studs 38 on thecorresponding ends of the mold.

After the tire cover has been placed in the mold, a sand bag 34 or otherflexible filler, is inserted in the cover and the cover is pressed intointimate contact with the mold by pressure exerted through the medium ofthe screw 40.

The circuit of the heating element is now closed and the heat impartedto the water in the flash boiler is quickly converted to steam whichheats the table top and the upright back 6 and by these means heats themold 31.

It has heretofore been necessary, in order to heat a side of the tirecover as well as the tread portion of the same, to place the mold firstin the position in which its tread portion is opposite to the top of thetable and then in a position in which the side of the mold correspondingwith the side of the tire cover to be vulcanized, is in contact with thetop of the table, or, as a variant, different kinds of molds were used,one to vulcanizc the tread portion of the tire cover and one tovulcanize the side portion of the same.

By the use of the present invention but one mold is used, and when thismold is placed in contact with the heated table top and with the heatedupright back of the same, both the tread portion and a side portion ofthe tire cover are vulcanized at one and the same time, without changingthe position of the mold or without the use 01'' two or more molds.

The table or stand slidably mounted on the base, is easily adjusted tovary to position of the mold relative to the pressure foot.

The use of the pressure screws in curing inner tubes is obvious andrequires no further explanation.

The sliding arms on the standards 25 are automatically locked in anyadjusted position by the weight of the screws at the outer ends thereofand the roughened surface of the standards greatly aids in frict-ionallylocking the arms in their adjusted positions.

In the modified construction illustrated in Figures 5 and 6, the back 35is placed in the middle of the table so that two molds may be used atone and the same time to vulcanize two tire covers simultaneously.

The back and the stand are hollowed as before to provide the water andsteam space and two heating elements are employed to generate the heatrequired for converting the water into steam.

The pressure screws for curing inner tubes are placed at the edges ofthe table top so that the latter may be used for vulcanizing inner tubesas well as tire covers.

The standard 36 for the arm on which the pressure screw 40 is supported,is in this construction, slidable on top of the wall by means of arunner 87 of dove-tail section on the standard, fitted in a corresponding; groove 38 in an enlargement of the wall.

What I claim and desire to secure by Letters Patent is:

l. A vulcanizer comprising a stand provided with a top and a back abovethe top, and having interiorly a chamber including spaces in the top andthe back, a heating element in the chamber and latches on the back forlockinga mold placed on the stand, in a position in which it contactswith the top and the back.

2. A vulcanizer comprising a stand for the support of a tire mold,having a chamber inclusive of a space or spaces coextensive with asurface or surfaces engaged by the mold, a heating element in thechamber, a base upon which the stand is adjustably supported, and apressure element on the base, disposed to act upon a tire in the edge,and a pressure-element cooperative mold.

3. A vulcanizer comprising a stand for the support of a tire mold,having a chamber inclusive of a space or spaces coextensive with asurface or surfaces engaged by the mold, a heating element in thechamber, a base upon which the stand is slidably supported, and apressure element on the base, disposed to act upon a tire in the mold.

4:. A vulcanizer comprising a stand having a top surface and a backsurface at anangle to each other to be simultaneously engaged by a moldplaced upon the stand, the stand having interiorly spaces of narrowwidth, coextensive with the said surfaces, an. oblong chamber below thespace along the top surface, and lengthwise parallel therewith, and apacking-space around the chamber, the chamber communicating with thespaces and being adapted to contain a heating-element, and a bed ofinsulating material for the chamber, within the packingspace.

5. A vulcanizer comprising a stand having a table-member and a backmember, to engage with an object placed on the stand, and an extensionof the table-member beyond an end of the back member, the stand havinginteriorly a narrow space coextensive with the outer surfaces of themembers to heat the same by means of a heating fluid andpressure-elements cooperative, respectively, with the table-member andwith the extension thereof.

6. A vulcanizer comprising a stand having exteriorly a horizontalsurface and an upright surface back thereof, and, interiorly, narrowspaces coextensive with said sur faces, and a chamber connected with thespaces by a restricted passage and adapted to contain a heating-element,and a pressureelement cooperative with the horizontal surface.

7. A vulcanizer comprising a stand hav ing interiorly a narrow spacewith a heat conductive wall, the outer surface of which is adapted to beengaged by an object placed on the stand, and, a chamber connected withthe space by a restricted passage and adapted to contain aheating-element, a non-heated extension of the wall at an end of thestand, and pressure elements cooperating, respectively, with saidsurface and said extension.

8. A vulcanizer comprising a stand having a table-member and a backmember, outer surfaces of which are at an angle to each other, to engagean object placed on the stand, the stand having interiorly narrow spacescoextensive with said surfaces, and the surface of the table memberforward of the back member being flat and even to its opposite edge toadmit of sliding an object on the said surface across its said oppositewith the table-member.

' 9. A vulcanizer comprising a stand having a table-member and a backmember, outer surfaces of which are at an angle to each other, to engagean object placed on the stand, the stand having interiorly narrow spacescoextensive with said surfaces, and the surface of the table memberforward of the back member being flat and even to its opposite edge toadmit of sliding an object on the said surface across its said oppositeedge, an extension of the table-member be yond an end of the backmember, and pressure-elements cooperating, respectively, with thetable-member and with its extension.

10. A vulcanizer comprising a base, a movable stand member on the basehaving an outer surface to engage an object placed on the stand, andhaving interiorly a space coextensive with said surface, to heat thesame by means of a heating-fluid, a standard fastened on the base andprojecting over the standanember in detached relation to the same and apressure-element on the standard, cooperative with a surface of thestand.

11. A vulcanizer comprising a stand having substantially horizontal andvertical surfaces for heating a tire in vulcanizing same, the standhaving an enclosed space below and behind said surfaces respectively, aheating element in said space, and pressure means cooperating with thesurfaces.

12. A vulcanizer comprising a stand hav ing substantially horizontal andvertical surfaces for heating a tire in vulcanizing same, the standhaving connecting enclosed spaces below and behind said surfacesrespectively, heating means in one of said spaces and disposed to heatthe other, and a pressure element cooperating with a surface of thestand.

13. A vulcanizer comprising a stand having interiorly a narrowwater-space with a heat-conducting wall for the transference of heat toan article engaging the wall exteriorly of the stand, and a tubularchamber adapted to contain a heating-element and communicating with thewater-space by a restricted passage.

14:. A vulcanizer comprising a stand having interiorly a narrowwater-space with a heat-conducting wall for the transference of heat toan article engaging the wall exteriorly of the stand, a tubularcontainer communicating with the water-space, and a housing closelyspaced from the wall of the container, within the same, and adapted tocontain a heating-element.

15. A vulcanizer comprising a stand having interiorly a narrowWiLtGf-SP2LCG with a heat-conducting wall for the transference of heatto an article engaging the wall exteriorly of the stand, an open-ended,tubular chamber communicating with the Waterspace, and closing means atthe ends of the container adapted to support a heating-element in thechamber.

In testimony whereof I have afiixed my signature.

